72 
The Agriculture of Pembrokeshire. 
some 300 feet above the sea-level. Generally speaking, this soil 
is fairly good and useful, though in places very shallow. One 
great advantage of the red sandstone is the abundance of springs 
of good water which it contains. Very usually where the two 
formations meet, there will be a band of clay, which varies in 
thickness, over which the water springs, and which is frequently 
a cold space between the two well-drained soils. These red 
soils are generally considered to be of a hungry nature, and to 
require frequent manuring. It is surprising how soon this land 
